Flora of the . lilegany State Park Region 127 



Bartonia virginica (L.) BSP. Bartonia 



Not found within the park area, but common in a 

 bog near Steamburg. 

 Menyanthes trifoliata L. Buckbean 



With the preceding species in a bog near Steam- 

 burg. 



APOCYNACEAK (Dogbane Family) 

 Apocynum androsaemifolium L. Spreading Dogbane 

 Common on the poore*" soils, especially in gravelly 

 or sandy places in open woods, thickets, on banks, 

 roadsides and along railroads. 

 Apocynum cannabinum L. Indian Hemp 



Gravelly bars and banks along the Allegheny river. 

 Infrequent. Elko. 



ASCLEPIADACEAE (Milkweed Family) 

 Asclepias syriaca L. Common Milkweed 



Roadsides, fields, open places along streams and 

 waste ground. Frequent or common in the lower 

 portions of the park area. 

 Asclepias phytolaccoides Pursh. Poke Milkweed - 



In sterile or slightly fertile soil of open woods, 

 thickets and banks chiefly along the Allegheny and 

 Tunungwant valleys ; elsewhere rare. 

 Asclepias incarnata L. Swamp Milkweed 



In wet alluvial soil or on gravelly bars and banks 

 along the larger streams. Infrequent. Tunungwant 

 valley, Elko, Red House etc. 



CONVOLVULACEAE (Morning-Glory Family) 

 Convolvulus spithamaeus L. (figure 22). Upright or 

 Low Bindweed 

 Common on banks and along railroad near Red 

 House in gravelly and rocky sterile soil. 



